ALAS2LIVEPATCH-2025-268

References: CVE-2025-38527  CVE-2025-39677  CVE-2025-39691  CVE-2025-39730 
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix use-after-free in cifs_oplock_break (CVE-2025-38527)

In the Linux kernel, the following vulnerability has been resolved:

net/sched: Fix backlog accounting in qdisc_dequeue_internal (CVE-2025-39677)

In the Linux kernel, the following vulnerability has been resolved:

fs/buffer: fix use-after-free when call bh_read() helper (CVE-2025-39691)

In the Linux kernel, the following vulnerability has been resolved:

NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() (CVE-2025-39730)

Issue Correction:
Please ensure you have live patching enabled. Run yum update kernel-livepatch-5.10.238-231.953 or yum update --advisory ALAS2LIVEPATCH-2025-268 to update your system.

New Packages:

aarch64:
    kernel-livepatch-5.10.238-231.953-1.0-5.amzn2.aarch64

src:
    kernel-livepatch-5.10.238-231.953-1.0-5.amzn2.src

x86_64:
    kernel-livepatch-5.10.238-231.953-1.0-5.amzn2.x86_64